Articles | Volume 19, issue 23
https://doi.org/10.5194/bg-19-5375-2022
https://doi.org/10.5194/bg-19-5375-2022
Research article
 | 
01 Dec 2022
Research article |  | 01 Dec 2022

Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community

Aaron Ferderer, Zanna Chase, Fraser Kennedy, Kai G. Schulz, and Lennart T. Bach

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Cited articles

Alvarez-Fernandez, S., Bach, L. T., Taucher, J., Riebesell, U., Sommer, U., Aberle, N., Brussaard, C. P. D., and Boersma, M.: Plankton responses to ocean acidification: The role of nutrient limitation, Prog. Oceanogr., 165, 11–18, https://doi.org/10.1016/J.POCEAN.2018.04.006, 2018. 
Armbrust, E.: The life of diatoms in the world's oceans, Nature, 459, 185–192, https://doi.org/10.1038/nature08057, 2009. 
Bach, L. T. and Taucher, J.: CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities, Ocean Sci., 15, 1159–1175, https://doi.org/10.5194/os-15-1159-2019, 2019. 
Bach, L. T., Alvarez-Fernandez, S., Hornick, T., Stuhr, A., and Riebesell, U.: Simulated ocean acidification reveals winners and losers in coastal phytoplankton, PLoS One, 12, e0188198, https://doi.org/10.1371/JOURNAL.PONE.0188198, 2017. 
Bach, L. T., Gill, S. J., Rickaby, R. E. M., Gore, S., and Renforth, P.: CO2 Removal With Enhanced Weathering and Ocean Alkalinity Enhancement: Potential Risks and Co-benefits for Marine Pelagic Ecosystems, Front. Clim., 1, 7, https://doi.org/10.3389/fclim.2019.00007, 2019. 
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Short summary
Ocean alkalinity enhancement has the capacity to remove vast quantities of carbon from the atmosphere, but its effect on marine ecosystems is largely unknown. We assessed the effect of increased alkalinity on a coastal phytoplankton community when seawater was equilibrated and not equilibrated with atmospheric CO2. We found that the phytoplankton community was moderately affected by increased alkalinity and equilibration with atmospheric CO2 had little influence on this effect.
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